Object: UGC11044 On scan num: 145 147 149 151 153 155 157 159 161 163 Off scan num: 146 148 150 152 154 156 158 160 162 164 R.A.: 17.926309 hrs Dec.: 18.926912 deg On azimuth: 99.271549 deg On zenith dist.: 47.662522 deg Off azimuth: 99.237189 deg Off zenith dist.: 47.697940 deg MJD: 52739 UTC: 0.276331 Center freq.: 1407.011381 MHz Doppler: 0.00006953 Num. correlators: 2 Spectrom. atten.: 27 37 dB Bandwidth: 5.0 MHz Num. channels: 1024 Eff. integration: 2940 seconds
This spectrum is the integration of all data for the scan with spectra from both polarizations added together. The spectral intensities are Ssys * (on - off) / off, where Ssys is the system temperature in Jy. The system noise flux density equivalent is calibrated for each scan with a calibration noise source firing during each scan. The cal value, in Jy, is calibrated by comparison with a number of continuum sources as described in the summary web page
This spectrum is the same as Figure 1 but with 2 60-second sub-integrations manually deleted because of interference or a bad baseline.
This is the section of spectrum measured to obtain the parameters listed below. The three horizontal dotted lines are the baseline, the peak level selected, and 20% of the peak level. The two vertical dotted lines mark the selected 20% line width edges. The solid horizontal line marks the velocity range chosen for the the line profile flux density integral. This spectrum has a second-order least squares fit baseline removed using most of the baseline shown in Figure 2.
Peak intensity: 0.119 Jy Lower 20% velocity: 2841.1 km/s Upper 20% velocity: 2917.0 km/s Systemic velocity: 2879.0 km/s Line width (20%): 75.9 km/s Profile integral: 6.19 Jy * km/s A: 5.82 B: 5.97 Ratio B/A: 1.024 Flux integral velocity range: 2777.2 - 2949.4 km/s
HI on high velocity side??